CN103847072B - The RTM mold of resin heating flow channel - Google Patents
The RTM mold of resin heating flow channel Download PDFInfo
- Publication number
- CN103847072B CN103847072B CN201410050734.0A CN201410050734A CN103847072B CN 103847072 B CN103847072 B CN 103847072B CN 201410050734 A CN201410050734 A CN 201410050734A CN 103847072 B CN103847072 B CN 103847072B
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- CN
- China
- Prior art keywords
- resin
- flow channel
- thermal treatment
- heating
- treatment zone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
- B29C70/48—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM], e.g. by vacuum
Abstract
The invention provides a kind of RTM mold of resin heating flow channel, comprise upper die and lower die and the resin thermal treatment zone, described upper die and lower die are formed with die cavity, the described resin thermal treatment zone is located on the sidewall of described upper die and lower die, the described resin thermal treatment zone is provided with for the temperature-viscosity monitor controller by regulating Heating Zone Temperature to control the viscosity of resin, the described resin thermal treatment zone is provided with resin flow channel, and described resin flow channel is communicated with described die cavity; The RTM mold of this kind of resin heating flow channel, compared with prior art, the present invention only needs to heat a small amount of resin through runner, effectively raise the efficiency minimizing energy consumption, because the resin in runner all can be injected in die cavity, be used for wetting fibre, just do not deposit resin residue after the heating and the situation of Reusability.
Description
Technical field
The present invention relates to a kind of RTM mold of resin heating flow channel.
Background technology
Composite RTM, resin transfer moulding, Resin Transfer Moulding, moulding process, is adopt upper and lower close die, first fabric blank is put into die cavity, pressurizeed resin injection by equipment again, wetting fibre fabric blank, the then method of curing molding.Because its production efficiency is high, quality of item is stablized, RTM technique has obtained applying more and more widely in automobile, aviation and military industry.
RTM technique requires very high to matrix resin, is exactly wherein to require that the range of viscosities of resin when flooding is 0.1 ~ 1Pa.S, if resin viscosity is excessive, then fiber can be caused to infiltrate insufficient, produce the defect such as starved and pore.But current many resin formulas, viscosity is all higher, and particularly some has the resin of flame-retardancy requirements, because added fire-retardant filler, its viscosity, usually more than 10Pa.S, cannot be directly used in RTM technique.
At present, common way, is first heated by resin, makes its viscosity be reduced to below 1Pa.S, then pour into.But the defect of the method is: need first by larger for a large amount of resin heating energy consumption; Secondly, if the resin after heating cannots be used up, when reusing, the resin property of heating for multiple times can decline, and in addition, some resin needs to be heated to 100 DEG C or higher temperature could use, and too high temperature can have an impact to pressurized equipment.
The problems referred to above should be paid attention to and the problem solved in the design and production use procedure of RTM mold.
Summary of the invention
The RTM mold that the object of this invention is to provide a kind of resin heating flow channel solve in prior art exist need first by larger for a large amount of resin heating energy consumption, if the resin after heating cannots be used up, when reusing, the resin property of heating for multiple times can decline, in addition, some resin needs to be heated to 100 DEG C or higher temperature could use, the problem that too high temperature can have an impact to pressurized equipment.
Technical solution of the present invention is:
A kind of RTM mold of resin heating flow channel, comprise upper die and lower die and the resin thermal treatment zone, described upper die and lower die are formed with die cavity, the described resin thermal treatment zone is located on the sidewall of described upper die and lower die, the described resin thermal treatment zone is provided with for the temperature-viscosity monitor controller by regulating Heating Zone Temperature to control the viscosity of resin, the described resin thermal treatment zone is provided with resin flow channel, and described resin flow channel is communicated with described die cavity.
Preferably, described resin flow channel is S type resin flow channel or overstriking cast resin flow channel.
Preferably, flow diameter 10 ~ 20mm, the length of described S type resin flow channel are 300 ~ 500mm, effectively can increase the runner time of resin at heating region, thus make resin reach temperature and the viscosity of perfusion requirement.
Preferably, the flow diameter of described overstriking cast resin flow channel is 50 ~ 100mm, length is 100 ~ 200mm, effectively can increase the capacity of resin at heating region, thus makes resin reach required temperature and viscosity when pouring into.
The RTM mold of a kind of resin heating flow channel of the present invention, arranges an extra resin flow channel in RTM mold; Resin flow channel has special heater; Runner place is provided with temperature and viscosity sensor, to monitor temperature and the viscosity of resin herein.
The invention has the beneficial effects as follows: the RTM mold of a kind of resin heating flow channel of the present invention, compared with prior art, the present invention only needs to heat a small amount of resin through runner, effectively raise the efficiency minimizing energy consumption, because the resin in runner all can be injected in die cavity, be used for wetting fibre, just do not deposit resin residue after the heating and the situation of Reusability.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention one;
Fig. 2 is another structural representation of the embodiment of the present invention one;
Fig. 3 is the structural representation of the embodiment of the present invention two;
Wherein: 1-patrix, 2-counterdie, the 3-resin thermal treatment zone, 4-temperature-viscosity monitor controller, 5-S type resin flow channel, 6-overstriking cast resin flow channel.
Detailed description of the invention
The preferred embodiments of the present invention are described in detail below in conjunction with accompanying drawing.
Embodiment one
As depicted in figs. 1 and 2, the present embodiment provides a kind of RTM mold of resin heating flow channel, comprise patrix 1, counterdie 2 and the resin thermal treatment zone 3, described patrix 1 and counterdie 2 are formed with die cavity, the described resin thermal treatment zone 3 is located on the sidewall of described patrix 1 and counterdie 2, the described resin thermal treatment zone 3 is provided with for the temperature-viscosity monitor controller 4 by regulating Heating Zone Temperature to control the viscosity of resin, and the described resin thermal treatment zone 3 is provided with resin flow channel, and described resin flow channel is communicated with described die cavity.Described resin flow channel is S type resin flow channel 5, and flow diameter 10 ~ 20mm, the length of described S type resin flow channel 5 are 300 ~ 500mm, is preferably diameter 15mm, length 400mm.
Embodiment two
As shown in Figure 3, the present embodiment provides a kind of RTM mold of resin heating flow channel, comprise patrix 1, counterdie 2 and the resin thermal treatment zone 3, described patrix 1 and counterdie 2 are formed with die cavity, the described resin thermal treatment zone 3 is located on the sidewall of described patrix 1 and counterdie 2, the described resin thermal treatment zone 3 is provided with for the temperature-viscosity monitor controller 4 by regulating Heating Zone Temperature to control the viscosity of resin, and the described resin thermal treatment zone 3 is provided with resin flow channel, and described resin flow channel is communicated with described die cavity.Described resin flow channel is overstriking cast resin flow channel 6, and the flow diameter of described overstriking cast resin flow channel 6 is 50 ~ 100mm, length is 100 ~ 200mm, is preferably diameter 75mm, length 150mm.
Open patrix 1 and counterdie 2, two kinds of resin flow channel patterns in visible Fig. 2, Fig. 3, what show in Fig. 2 is S type resin flow channel 5, what show in Fig. 3 is overstriking tubular resin runner, the object arranging these two kinds of resin flow channels is to increase the flowing time of resin in runner, makes resin reach required temperature and viscosity before fabric in infiltration mould.
The RTM mold of embodiment one, two in use, first normal temperature resin is squeezed in the ad hoc resin flow channel of mould, resin flow channel is that resin intensification viscosity reduces by electrical heating or oil heating, check resin viscosity by temperature-viscosity monitor controller 4 simultaneously, and regulated by temperature, make resin viscosity reach technological requirement.
Claims (4)
1. the RTM mold of a resin heating flow channel, it is characterized in that: comprise patrix (1), counterdie (2) and the resin thermal treatment zone (3), described patrix (1) and counterdie (2) are formed with die cavity, the described resin thermal treatment zone (3) is located on the sidewall of described patrix (1) and counterdie (2), the described resin thermal treatment zone (3) is provided with for the temperature-viscosity monitor controller (4) by regulating Heating Zone Temperature to control the viscosity of resin, the described resin thermal treatment zone (3) is provided with resin flow channel, and described resin flow channel is communicated with described die cavity.
2. the RTM mold of resin heating flow channel as claimed in claim 1, is characterized in that: described resin flow channel is S type resin flow channel (5) or overstriking cast resin flow channel (6).
3. the RTM mold of resin heating flow channel as claimed in claim 2, is characterized in that: flow diameter 10 ~ 20mm, the length of described S type resin flow channel (5) are 300 ~ 500mm.
4. the RTM mold of resin heating flow channel as claimed in claim 2, is characterized in that: the flow diameter of described overstriking cast resin flow channel (6) is 50 ~ 100mm, length is 100 ~ 200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410050734.0A CN103847072B (en) | 2014-02-14 | 2014-02-14 | The RTM mold of resin heating flow channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410050734.0A CN103847072B (en) | 2014-02-14 | 2014-02-14 | The RTM mold of resin heating flow channel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103847072A CN103847072A (en) | 2014-06-11 |
| CN103847072B true CN103847072B (en) | 2015-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410050734.0A Active CN103847072B (en) | 2014-02-14 | 2014-02-14 | The RTM mold of resin heating flow channel |
Country Status (1)
| Country | Link |
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| CN (1) | CN103847072B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201611866D0 (en) * | 2016-07-07 | 2016-08-24 | Hexcel Composites Ltd | Improvements in or relating to infusion moulding |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5151776B2 (en) * | 2007-07-31 | 2013-02-27 | 東レ株式会社 | RTM molding resin injection device, RTM molding device and RTM molding method using the same |
| KR100831311B1 (en) * | 2007-10-31 | 2008-05-22 | 국방과학연구소 | Method for reinforcement manufacturing a composite sabot as using the resin-injection vartm after stitching |
| CN102941722A (en) * | 2012-11-22 | 2013-02-27 | 中国人民解放军国防科学技术大学 | Flame-retardant corrosion-resistant case material, resin transfer molding (RTM) technique thereof and injection molding system |
| CN103552212B (en) * | 2013-10-12 | 2016-06-01 | 奇瑞汽车股份有限公司 | A kind of rapid shaping RTM mold |
| CN203854164U (en) * | 2014-02-14 | 2014-10-01 | 江苏恒神纤维材料有限公司 | RTM (Resin Transfer Molding) mold with resin heating runner |
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2014
- 2014-02-14 CN CN201410050734.0A patent/CN103847072B/en active Active
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| Publication number | Publication date |
|---|---|
| CN103847072A (en) | 2014-06-11 |
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Address after: 212314 Danyang City, Zhenjiang Province, Hong Kong Road on the north side of the road No. 777, No. Applicant after: Jiangsu Heng Shen limited company Address before: 212314 Danyang City, Zhenjiang Province, Hong Kong Road on the north side of the road No. 777, No. Applicant before: Jiangsu Hengshen Fibre Materials Co., Ltd. |
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